cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
336
Views
1
Helpful
2
Replies

dhcp update to local dns

asmlicense
Level 1
Level 1

Hello,

we configured dhcp pools on 3850 switch and the local dns servers on system side.

when user switching from lan to wifi dns records are nor updated. 

how can we push updates from dhcp pool on switch to dns ?

as i understood we can do it with "update dns" command under the pool configuration.

2 Replies 2

M02@rt37
VIP
VIP

Hello @asmlicense,

Enable automatic DNS updates using the "update dns" command.

Use use the ip dhcp update dns command in global configuration mode.

Screenshot_20230821_142120.jpg

https://www.cisco.com/c/en/us/td/docs/ios/12_2sb/12_2sba/feature/guide/sba_ddns.html#wp1201651

Best regards
.ı|ı.ı|ı. If This Helps, Please Rate .ı|ı.ı|ı.

I did it before posting here and active core reloaded itself with "Critical software exception" reason.

for 5 minutes all 140 sites and 2000 users were unable to connect to any local and internal sources.

because of it i want force synch with dns under the pool configuration